Features For Use With Impact Drivers: 1/2in impact driver drill chuck for 1/16in‑1/2in (1.5‑13mm) drill bits for standard impact drivers, hex shank converts impact drivers into immediate fixation non-quick change bits and driver bits . Save Time and Energy: After installing this 1/2" drive 1/4" hex adapter, it's easy to convert an electric impact wrench into a drill, saving you time and effort on the job. A light tap with a mallet will securely wedge into place. Can be easily removed with the tap lever. Strong and Durable: The main body is made of high carbon steel with high precision thread and taper, tightly combined with anti-rust chrome coating body and sleeve electrophoretic paint coating, very durable and long service life. Drilling Jobs: Widely used for heavy duty drilling operations such as drilling hard materials such as walls or stones. Or for impact drills and electric drives to quickly switch tasks and keep the job running smoothly. Suitable for Milling Machines And Lathing Machines: The 3-jaw drill chuck can be installed in the head or tailstock of a drilling machine, milling machine or wood or metal lathe, practical and functional. Ideal for holding drills, shafts, small turnings, refill shafts, pins, etc. Specification: Item Type: 3 Jaw Drill Chuck Material: High carbon steel Clamping Range: Approx. 1.5 ~ 13mm / 0.06 ~ 0.51in Drill Chuck Connecting Thread: 1/2-20UNF For: Impact wrench conversion for 1/2in fittings Package List: 1 x Chuck 2 x Conversion Head 1 x O Ring 1 x Locating Pin 1 x Key Package List 1 x Chuck 2 x Conversion Head 1 x O Ring 1 x Locating Pin 1 x Key